AUTHOR=Schäfer Martina , Haack Michaela TITLE=Overcoming the efficiency paradigm—The challenges of introducing local organic beef in canteens JOURNAL=Frontiers in Sustainable Food Systems VOLUME=Volume 7 - 2023 YEAR=2023 URL=https://www.frontiersin.org/journals/sustainable-food-systems/articles/10.3389/fsufs.2023.1152185 DOI=10.3389/fsufs.2023.1152185 ISSN=2571-581X ABSTRACT=see revised version